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Finding the Fourth Proportional to 127,203.86, 175,542.12 and 69,845.66

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Solution

The fourth proportional to 127,203.86, 175,542.12 and 69,845.66 is: 96,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,203.86 : 175,542.12 = 69,845.66 : x
  2. Step 2: Convert to fraction form
    127,203.86/175,542.12 = 69,845.66/x
  3. Step 3: Cross multiply
    127,203.86x = 175,542.12 × 69,845.66
  4. Step 4: Simplify right side
    127,203.86x = 12,260,855,229.20
  5. Step 5: Solve for x
    x = 12,260,855,229.20/127,203.86
  6. Step 6: Final answer
    x = 96,387.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.